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Astro Pneumatic 405 Air Powered Pneumatic Caulking Gun

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Item Number:AST405
Stock Number:405
Availability:In Stock
Usually ships within 1 day
Our Price:
2+ / $25.95
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Astro Pneumatic 405 Air Powered Pneumatic Caulking Gun

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The 405 includes:

  • 1x Astro Pneumatic 405 Caulking Gun


  • Recommended pressure 40 - 90 PSI
  • Permits smooth, effortless flow of caulk, adhesives and sealants
  • Uses standard 11oz cartridges

This Air Powered Caulking Gun permits smooth, effortless flow of caulk, adhesives, and sealants. The Astro Pneumatic 405 uses standard 11 oz cartridges. This product efficiently creates more successful results.

Tech Specs:

  • Brand: Astro Pneumatic
  • Model: 405
  • MPN: 405
  • UPC: 745227001033
  • Type: Caulking Gun
  • Item Weight: 3 pounds
  • Product Dimensions: 13.5 x 6.1 x 2.5 inches
  • Package Qty.: 1

1 Year Standard Warranty

Astro Pneumatic Tool Co. warrants these products to the original user against defective material or workmanship for a period of 1 year from the date of 1st use. Astro reserves the right to determine whether the product failed because of defective material, workmanship or other causes and to charge back for missing parts. Astro Pneumatic Tool Co., at its discretion, will repair products covered under this warranty free of charge. The distributor should direct the original user to return the product with the distributor’s name, address, adequate proof of date of purchase or a copy of warranty card, and a short note explaining the problem. Failures caused by accident, alteration, or misuse are not covered by this warranty.

Product with Multiple Components

Astro will replace free of charge any part of a component product that fails within 1 year of first use by the original user. See New Defective statement for how to obtain the replacement. Items included in this category include kits, hand tool kits and any other product where there are multiple items or components that make up the unit. Please call 800-221-9705 to obtain product components covered under warranty.

Hydraulic Power Unit Exchange

Astro will replace free of charge the power unit on select hydraulic equipment. Please call 800-221-9705 to arrange for replacement.

General Warranty Terms

Astro Pneumatic Tool Co. or its authorized service representatives must perform all warranty repairs. Any repair to the product by unauthorized service representatives voids this warranty. The rights under this warranty are limited to the original user and may not be transferred to subsequent owners.

This warranty is in lieu of all other warranties, expressed or implied, including warranties of merchantability and fitness for a particular purpose. Some states do not allow the exclusion of limitations of incidental or consequential damages so the above limitations may not apply to you. All claims must be sent to:

Astro Pneumatic Tool Company
Attn: Customer Service
2417 Seaman Ave., South El Monte, CA 91733
Tel: 800-221-9705


New defective product is product that does not function properly the first time used. Astro will replace "free of charge” to the original user any product that is deemed to be "New Defective". Original user may email, call: 800-221-9705 or fax: 877-318-2194 a request to Customer Service for replacement with 1) proof of purchase or copy of warranty card and 2) a statement explaining the problem. Astro reserves the right to request that the original user return the New Defective product, freight collect, for evaluation prior to providing a replacement. Astro will pre-pay the freight on the replacement unit.

All new defective returns are to be sent to:

Astro Pneumatic Tool Company
Tel: 800-221-9705


Astro Pneumatic Tool Co. or its authorized service representatives must perform all warranty repairs. All repairs are to be sent to:

Astro Pneumatic Tool Company
Tel: 800-221-9705
2 Reviews
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100% Recommend this product (2 of 2 responses)
By Chris
Patterson, Louisiana
May 17, 2016
Teak Deck Repair ASTRO 405
I am re-caulking about 1200 linear feet of teak decking on a 41' sailboat. I have done this before with a manual gun, and it is a tiresome job. This gun makes the job faster, easier and provides a better application due to uniform pressure.

I have large hands, and the trigger is a little uncomfortable, but I love the gun.
ProsUniform application of the caulk Much easier than manual applications Well built steel construction
ConsTrigger is a little uncomfortable
By brian
March 29, 2013
tool to have it! this gun is not plastic!
we bought this gun to do caulk around commercial building wall that is at least 25-30 feet high and it has lot of crack to fill. in our estimate it will take at least 3 dozen or so polyurethane caulking tube.we started using from last week and it flawlessly did the job without any hiccup. like i said in title, this gun is not plastic it's a solid metal,it's bit heavy. i dropped it few times but it worked without any problem. i purchased air regulator with dial gauge that goes on paint gun from home depot and installed it @ caulking gun to regulate air flow at gun, so i do not have to keep going back and forth to compressor to regulate air. i kept air pressure 90psi @ compressor. and end of 100 ft hose (3/8" diameter) regulated air flow with attached regulator to gun from HD.on my first day of use less than 45 mins or so i was done with 5 tubes. that includes some other cleaning and left over work as well.

i am very pleased with this Pneumatic Air gun!

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